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package javaapplication1.uno;

/**
 *
 * @author abelitro
 */
interface Animal {

    void makeNoise();
}

class Horse implements Animal {

    Long weight = 1200L;

    public void makeNoise() {
        System.out.println("whinny");
    }
}

public class Icelandic extends Horse {

    public void makeNoise() {
        System.out.println("vinny");
    }

    public static void main(String[] args) {
        Icelandic i1 = new Icelandic();
        Icelandic i2 = new Icelandic();
        Icelandic i3 = new Icelandic();
        i3 = i1;
        i1 = i2;
        i2 = null;
        i3 = i1;
    }
}